Hardware Maintenance Manual

1.Gotohttp://www.lenovo.com/diagnose.

2.ClickLenovoBootableDiagnostics.

3.FollowtheinstructionsontheWebsitetocreateabootablediagnosticmediumonaUSBdeviceorCD.

Tousethediagnosticmediumyouhavecreated,dooneofthefollowing:

•IfyouhavecreatedthebootablediagnosticmediumonaUSBdevice,dothefollowing:

1.AttachtheUSBdevicetothecomputer.

2.T urnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage

28,andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”on

page37forerrorcodedescriptionsandtroubleshootinghints.

3.WhentheThinkPadlogoisdisplayed,repeatedlypressandreleasetheF12key.WhentheBoot

Menuwindowopens,releasetheF12key.

4.UsethearrowkeystoselectUSBHDDandthenpressEnter.Thediagnosticprogramwillbe

launchedautomatically.

5.Followtheinstructionsonthescreentousethediagnosticprogram.

•IfyouhavecreatedthebootablediagnosticmediumonaCD,dothefollowing:

1.T urnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage

28,andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”on

page37

forerrorcodedescriptionsandtroubleshootinghints.

2.Connectanexternalopticaldrivetoyourcomputer,andinserttheCDintotheopticaldrive.

3.Restartthecomputer.

4.WhentheThinkPadlogoisdisplayed,repeatedlypressandreleasetheF12key.WhentheBoot

Menuwindowopens,releasetheF12key.

5.UsethearrowkeystoselectATAPICDx(x:0,1,...)andthenpressEnter.Thediagnosticprogram

willbelaunchedautomatically.

6.Followtheinstructionsonthescreentousethediagnosticprogram.

Powersystemcheckout

Toverifyasymptom,dothefollowing:

1.Connecttheacpoweradapterandturnonthecomputer.

2.Checkthatpowerissuppliedwhenyouturnonthecomputer.

3.Insertastraightenedpaperclipintotheemergencyresetholetoresetthecomputer.Conﬁrmthe

systemisstillpoweredon.

4.T urnoffthecomputeranddisconnecttheacpoweradapter.

5.Checkthatthebatterypacksuppliespowerwhenyouturnonthecomputer.

Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:

•“Checkingtheacpoweradapter”onpage28

•“Checkingoperationalcharging”onpage29

•“Checkingthebatterypack”onpage29

•“Checkingthebackupbattery”onpage29

Checkingtheacpoweradapter

Ifthecomputerfailsonlywhentheacpoweradapterisused,dothefollowing:

•Ifthepower-onindicatordoesnotturnon,checkthepowercordoftheacpoweradapterforcorrect

continuityandinstallation.

•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingoperationalcharging”onpage29

28HardwareMaintenanceManual